Who was the king during the time of Nahum?

The prophet Nahum is traditionally believed to have prophesied during the time of King Manasseh of Judah, who reigned from approximately 687 to 642 BCE. However, some scholars suggest that Nahum's message may have been directed towards the Assyrian empire during the reign of Ashurbanipal, who ruled from 668 to 627 BCE. Nahum's prophecies primarily focus on the impending judgment of Nineveh, the capital of Assyria.